Patents by Inventor Herold R. Fettemam

Herold R. Fettemam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Near-field optical heterodyne measurement system using near-field fiber-optic probe
    Patent number: 6417505
    Abstract: A near-field optical heterodyne measurement system for measuring characteristic of high-frequency and high-speed devices includes a combining unit for combining two optical beams to produce a submicron-size optical beam, wherein the two optical beams have different frequency from each other, a near-field fiber-optic probe for injecting the submicron-size optical beam into a sample device to be measured, a position controlling unit for controlling a position of the near-field fiber-optic probe, and a measuring unit for receiving a millimeter wave exited from the sample device to measure characteristics of the sample device.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: July 9, 2002
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seok Kil Han, Kwang Yong Kang, Sang Dong Jung, Herold R. Fettemam